<template>
  <el-container class="home-container">
    <el-header>
      <div>
        <img src="../assets/heima.png" alt="">
        <span>电商管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <div class="toggle-button" @click="togleCollapse">|||</div>
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#409FFF"
          unique-opened
          :collapse = isCollapse
          :collapse-transition = false
          :router="true"
          :default-active = acticePath
        >
          <!-- 一级菜单 -->
          <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i :class="iconObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item :index=" '/' + subItem.path" v-for="subItem in item.children" :key="subItem.id"
                          @click="saveNavState('/' + subItem.path)">
              <template slot="title">
                <i class="el-icon-menu"></i>
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 主页面 -->
      <!-- 路由占位符 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data () {
    return {
      menuList: [],
      iconObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      acticePath: ''
    }
  },
  name: 'Home',
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      this.menuList = res.data
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      // console.log(res)
    },
    togleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.acticePath = activePath
    }
  }
}
</script>

<style lang="scss" scoped>
  .home-container{
    height: 100%;
    .el-header{
      background-color: #373f41;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-left: 0;
      div{
        span{
          color: #fff;
          font-size: 20px;
          margin-left: 15px;
        }
        display: flex;
        align-items: center;
        padding-left: 20px;
      }
    }
    .el-aside{
      background-color: #333744;
      .toggle-button{
        background-color: #4A5064;
        font-size: 10px;
        line-height: 24px;
        color: #fff;
        text-align: center;
        letter-spacing: 0.2em;
        // 鼠标放上去变成小手
        cursor: pointer;
      }
      .el-menu{
        border-right: 0px;
      }
    }
    .el-main {
      background-color: #eaedf1;
    }
  }
  .iconfont{
    margin-right: 10px;
  }

</style>
